Awazel Bitumin Sheet DS40/180 4mm x 10m

Key specs include: 4mm thickness for strong protection; APP modified bitumen for elasticity and durability; UV-resistant coating to resist sun damage; reinforced polyester core for stability; self-adhesive backing for easier installation; suitability for concrete, metal, and wooden substrates; leakproof seam bonding to seal joins; and a use case focus on roofing and waterproofing applications.

The membrane has a protective backing that you peel away gradually to expose the adhesive. To install, prepare a clean, dry surface, align the sheet, and press it firmly onto the substrate starting from one edge. Peel back more of the backing as you lay down the sheet, and use a roller or hand pressure to bond the material. Ensure proper overlap at seams to promote a leakproof seal.

This membrane is compatible with concrete, metal, and wooden surfaces. For best results, ensure the substrate is sound, clean, dry, and free of debris or loose material before application.

For watertight seams, maintain adequate overlap (as recommended for this product) and press the seam firmly to ensure full contact with the adhesive. Use a roller to smooth out all air pockets and ensure the seam is bonded along its entire length for leakproof performance.

The membrane features UV resistance and thermal stability designed to perform in a range of temperatures. It’s best installed in dry conditions within the specified temperature range, away from direct sun when possible, and stored out of extreme heat or cold prior to installation.

Wear appropriate PPE such as gloves to protect skin from the adhesive and sharp edges, and eye protection when cutting or handling. Work in a well-ventilated area and keep away from open flames or heat sources. Handle the rolls carefully to avoid injury due to their weight and stiffness.

Common applications include roofing waterproofing, protecting basements from moisture ingress, and waterproofing wet areas or parapets. Its durability and flexible APP bitumen formulation make it suitable for areas requiring long-term moisture protection.

Store the rolls in a dry, shaded area away from direct sunlight to prevent UV damage. Keep them flat or upright as appropriate and avoid excessive compression or punctures. Ensure the storage environment is within recommended conditions until installation.

If you’re evaluating options, you can compare this membrane with related APP bituminous membranes available on Fepy by checking product pages such as Awazel DS40 180 5mm APP Bituminous Membrane and other DS40 variants. For reference, see: https://fepy.com/product/awazel-ds40-180-5mm-app-bituminous-membrane and the current DS40 180 4mm page at https://fepy.com/product/awazel-ds40-180-4mm-app-bituminous-membrane.

Yes. Use a sharp utility knife to cut clean, straight edges and allow a bit of extra length for seam overlaps. When laying out sheets, align edges carefully to avoid gaps, and use the self-adhesive backing in multiple passes if needed. Smooth and press the material from the center toward the edges to eliminate air pockets.

If a seam shows signs of lifting or a damaged area occurs, cut out the damaged section and apply a patch of the same membrane with proper overlaps. Repress the patch firmly with a roller to ensure a continuous bond and water resistance. Regular inspection after installation is recommended to catch issues early.